Hi Mel-D,You may consider activating the limit and home sensors.Also, converting INT to BOOL is a tedious job. There are two control words and two status words (which are meant for inputs and outputs respectively, but may be used in any fashion). Check for the objects 1100.3 and 1100.4 for control words and 1000.3 and 1000.4 for status words.If your format is DDDDDDD.DD, then you should use 1100003.01 for refering to the second bit. If you were to write a codesys program and activate any block via the control word, you should use C3Plus.DeviceControl.ControlWord1.1 at the execute of that block.Hope this helps.-Vijay. Anyone know how to retain the positioning data in codesys after a power failure? I know you can write objects to 20.11 and read from 20.10 but how do I do that internally with codesys? And how do I write the correct position?

• Parker Servo Drive

Every time I do a power cycle it sets the position to 0.00000 no matter where the stage is located. When I try to write to 20.11 (C3.ObjectDirWriteObjects) within codesys my program won't enable MCPower and stays in the power on state without drive enabled.Thanks and this thread has helped me quite a bit already, given the shotty documentation with these drives. Hi guys!My group are writing our bachelor project on a Hexapod (Stewart platform) with 6 Parker actuators and motors, and we are using a Compax3Model C3S025V2 F10 I10 T10 MOO. We are using Servo Manager, Windows 7 computer, the specifications/requierments are fulfilled.

Parker Servo Drive

We are trying to communicate with the Compax3 using a Serial to USB adapter (RS232), we are able to set the COM port on ServoManager to the right port where the USB is connected, but the ServoManager apperently dose`nt see that the COM port is a USB.Whenever we try to set the ServoManager up with the 'Online Device Identification' the error is:'Device identification error.No valid compax3 unit detected.No compax3 identity string found.COM: wrong COM port?COM: no compax3 connected?' We know that it is the right COM port, and the compax3 is connected with an external 24VDC power supply.Our toughts are that maybe the Serial to USB adapter is not compatible with Win7, we have tried with different Serial to USB adapter cables with no luck.Any ideas?

Rohnert Park, CA, April 7, 2007 - Parker announces the addition of four new high-current power levels to its Compax3 family of industrial high-performance, all-digital servo drives. Now available with up to 75kW of output power, the Compax3 series will satisfy the demand for both high- and low-power drives within the same family. This is especially beneficial in the material forming, material handling and printing and converting markets, where the demand for a large power range is most prevalent. Customers save time and reduce their investment by selecting Parker as their single source for a comprehensive selection of servo drives.The C3H has four output currents: 50, 90, 125 and 155 Amps RMS.

All these have an input voltage range of 350VAC to 528VAC. These drives are capable of controlling both synchronous and asynchronous motors for added flexibility.The new Compax3 drives contain all the same features and benefits as their lower-powered siblings. These time- and cost-saving features include auto-tuning, internal function generator on all units, support for Stegmann single- and multi-turn absolute encoders to dispense with limit switches and homing routines, many control levels and industry standard fieldbus protocols, including DeviceNet, to fit any application.

Also included are special software function modules for torque/force control used in many types of material forming applications. These modules allow the user to switch from position control to torque/force control on the fly.All Compax3 drives ship with the feature-packed Compax3 ServoManager software package for commissioning the drive.

The ServoManger program provides easy and intuitive diagnostic screens, graphical tuning utilities, an OS download tool, an s-curve acceleration calculator, and a motor configuration wizard to be used with non-Parker motors. The ServoManager package is provided free of charge and may be downloaded from the Parker Electromechanical Automation Web site. Also available at parkermotion.com is a complete video training tutorial for ServoManager.The 'Compax3 Video Training Series' steps the user from beginning to end of commissioning the Compax3. There is a series for the drive-only (I10T10) =units, a series for the indexers (I11T11), and a series for the advanced indexers (I12T11). A single series can be completed in as little as 20 minutes.About Parker Electromechanical AutomationA division of Parker Hannifin Corporation's Automation Group since 1987, Electromechanical Automation is a pioneer, developer and manufacturer of full-spectrum computer-based motion controllers, servo/step motor drives, servo motors and human-machine interfaces, positioning systems, gearheads and gear motors. These products automate the manufacturing of a significant fraction of the world's goods and services. Electromechanical Automation products are sold via independent authorized Automation Technology Centers-a group of nearly 100 professional, highly trained organizations with more than 135 points-of-presence throughout the world.